Magneto
114 failure reports named the magneto in the last ten years, 734 since 1995, most often on the Piper PA-28 Cherokee, Warrior, Archer and Arrow; the condition most often found was "failed". 826 FAA approvals let 6 companies make a replacement magneto, Continental Motors INC holding the most (428).
Reports by year
Reports by year, as a table
| reports | |
|---|---|
| 1995 | 43 |
| 1996 | 38 |
| 1997 | 27 |
| 1998 | 36 |
| 1999 | 17 |
| 2000 | 28 |
| 2001 | 29 |
| 2002 | 33 |
| 2003 | 19 |
| 2004 | 27 |
| 2005 | 32 |
| 2006 | 22 |
| 2007 | 18 |
| 2008 | 36 |
| 2009 | 21 |
| 2010 | 21 |
| 2011 | 21 |
| 2012 | 33 |
| 2013 | 19 |
| 2014 | 55 |
| 2015 | 45 |
| 2016 | 6 |
| 2017 | 9 |
| 2018 | 4 |
| 2019 | 9 |
| 2020 | 16 |
| 2021 | 6 |
| 2022 | 14 |
| 2023 | 19 |
| 2024 | 16 |
| 2025 | 11 |
| 2026 | 4 |
Which system the reports file it under last ten years
Reports by system, as a table
| reports | |
|---|---|
| Engine | 112 |
| Airframe structure | 2 |
Models most often reporting it last ten years
Models most reported, as a table
How it failed the condition found, last ten years
Conditions found, as a table
| reports | |
|---|---|
| failed | 29 |
| malfunctioned | 10 |
| unserviceable | 9 |
| damaged | 5 |
| defective | 5 |
| inoperative | 5 |
| contaminated | 4 |
| intermittent | 4 |
| loose | 4 |
| mismanufactured | 4 |
Engines most often reporting it
Approved replacement parts 826 parts manufacturer approvals
A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a magneto and sell it as an approved part for the models named. These are the companies holding such approvals for a magneto:
For these models most: Pzl-Bielsko B1 (2), Northrop C-125 (2), Israel Aerospace Industriesltd G200 (1).
| Maker | Part | Replaces | Fits | Granted | Status |
|---|---|---|---|---|---|
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-9 | LW-349290-9, LW-349290-9D, LW-11589,... | Lycoming Engines TVO-435-F1A, VO-435-B1A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-2 | LW-349290-2, LW-349290-2D, LW-349290-12,... | Lycoming Engines TIGO-541-B1A, TIGO-541-D1A, TIGO-541-D1B | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-14 | LW-349310-14, 10-349310-14, BL-349310-14,S6RN-1209 | Lycoming Engines LTIO-540-J2B | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-4 | LW-349310-4, LW-349310-4D, LW-349310-12,... | Lycoming Engines IGO-540-A1C, IGSO-540-A1A, IGSO-540-A1C | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349220-5 | 643730, 646981, 10-349220-5, BL-349220-5, S6RN-1201 | Continental... IO-470-D, IO-470-E, IO-470-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349220-4 | 633091, 643729, 646980, 10-349220-2,... | Continental... GTSIO-520-D, GTSIO-520-E, GTSIO-520-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-6 | 632959, 643808, 646983, 10-349260-1,... | Continental... IO-470-D, IO-470-E, IO-470-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-1 | LW-349310-1, LW-349310-1D, 75453, 10-349310-1,... | Lycoming Engines AEIO-540-D4B5, AEIO-540-D4D5, AEIO-540-L1B5 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-5 | 640030, 643810, 646957, 653290, 10-349350-5,... | Continental... IO-470-D, IO-470-E, IO-470-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-1 | LW-349290-1, LW-349290-1D, 75454, 10-349290-1,... | Lycoming Engines AEIO-540-D4B5, AEIO-540-D4D5, AEIO-540-L1B5 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-17 | LW-349290-17, 10-349290-17, BL-349290-17, S6RN-1208 | Lycoming Engines LTIO-540-J2A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349370-4 | LW-349370-4, LW-349370-4D, 75453, 10-349370-4,... | Lycoming Engines AEIO-540-D4B5, HIO-540-A1A, IO-540-C4D5 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200, Series, 6 Cyl ES-349290-4 | LW-349290-4, LW-349290-4D, 75898, 10-349290-4,... | Lycoming Engines TVO-435-B1B, TVO-435-D1A, TVO-435-G1A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-10 | LW-349310-10, 10-349310-10, BL-349310-10,S6LN-1209 | Lycoming Engines TVO-435-B1B, TVO-435-D1A, TVO-435-G1A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-7 | 633090, 643807, 646982, 10-349260-2,... | Continental... GTSIO-520-D, GTSIO-520-E, GTSIO-520-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-3 | LW-349290-3, LW-349290-3D, 75456, 10-349290-3,... | Lycoming Engines IGO-540-A1C, IGSO-540-A1A, IGSO-540-A1C | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349370-2 | LW-349370-2, LW-349370-2D, 75901, 10-349370-2,... | Lycoming Engines GSO-480-B1J6 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349290-1 | 10-349290-1, BL-349290-1, S6LN-1208 | Lycoming Engines TIO-540-AF1A with STC SE04445AT... | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349260-3 | 646959, 10-349260-3, BL-349260-3, S6RN-1205 | Continental... IO-520-K | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-6 | 653317-1, 10-349350-6, BL-349350-6, S6LN-1225 | Continental... LTSIO-520-AE | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-8 | LW-349310-8, LW-349310-8D, 10-349310-8,... | Lycoming Engines AEIO-540-D4B5, IO-540-G1D5, IO-540-K1B5 | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-11 | LW-349310-11, LW-349310-11D, 10-349310-11,... | Lycoming Engines TVO-435-F1A, VO-435-B1A | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-4 | 640030, 643809, 646958, 653291, 10-349350-4,... | Continental... IO-470-D, IO-470-E, IO-470-F | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349310-1 | 10-349310-1, BL-349310-1, S6LN-1209 | Lycoming Engines TIO-540-AF1A with STC SE04445AT... | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto Assembly, S-1200 Series, 6 Cyl ES-349350-7 | 653317-2, 10-349350-7, BL-349350-7, S6LN-1225 | Continental... LTSIO-520-AE | 2025-11-10 | current |
| Hartzell Engine Technologies LLC | Magneto ES6320 | 6320 | Continental... LTSIO-360-E, -EB, -KB | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6340 | 6340 | Lycoming Engines LTIO-540-AK1A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6380 | 6380 | Continental... IO-470-A, -C, -D | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6309 | 6309 | Continental... IO-470-D, -E, -F | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4372 | 4372 | Lycoming Engines O-235-K2B, -K2C, -L2A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4371 | 4371 | Lycoming Engines O-235-C2C, -H2C, N2C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4353 | ES4353 | Lycoming Engines O-360-A4M | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6394 | 6394 | Lycoming Engines LTIO-540-J2B | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6367 | 6367 | Continental... GO-300-A, -B, -C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES10-391514-2 | 10-391514-2 | Continental... GTSIO-520-D, -H, -L | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6310 | 6310 | Continental... IO-470-A, -C, -D | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6351 | 6351 | Lycoming Engines O-540-A1B5, -A4A5, -A4B5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6314 | 6314 | Continental... IO-360-A, -B, -C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6360 | 6360 | Lycoming Engines IO-540-AG1A5, -AA1B5, TIO-540-A2B | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4345 | 4345 | Lycoming Engines IO-360-A1A, -A2A, -A2D-C1A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4301 | 4301 | Continental... C-75-12, -12F, -12FH | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4354 | 4354 | Lycoming Engines IO-320-C1A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4310 | 4310 | Continental... IO-240-B | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6310 | 6310 | Continental... IO-550-N | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6362 | 6362 | Continental... IO-470-A, -C, -D | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6313 | 6313 | Continental... IO-470-E, -F, -D | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6382 | 6382 | Continental... IO-470-A, -C, -D | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES10-349393-10 | 10-349393-10 | Continental... IO-470-L, IO-520-B, -BA | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4374 | 4374 | Lycoming Engines LIO-360-C1E6 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4348 | 4348 | Lycoming Engines LIO-360-M1A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6379 | 6379 | Continental... E-165-2, -3, -4 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6377 | 6377 | Continental... E-165-2, -3, -4 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6324 | 6324 | Continental... LTSIO-520-AE, TSIO-360-A, -AB | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6365 | ES6365 | Lycoming Engines TIO-540-U2A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6363 | 6363 | Lycoming Engines IO-540-AG1A5, TIO-540-A2B, -A2C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6364 | ES6364 | Continental... C-145-2, -2H, -2HP | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6355 | 6355 | Lycoming Engines O-540-A1A5, -A1B5, -A1C5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6361 | 6361 | Lycoming Engines IO-540-AA1B5, TIO-540-W2A, -AF1A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6371 | 6371 | Lycoming Engines O-540-E4C5, IO-540-G1D5, -K1B5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6350 | 6350 | Lycoming Engines HIO-390-A1A, O-540 -A1D5, -A4A5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6393 | 6393 | Lycoming Engines O-540-A1D5, -A4D5, -B1A5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6390 | 6390 | Lycoming Engines O-540-F1A5 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4309 | 4309 | Continental... IO-240-B | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES6380 | 6380 | Continental... IO-550-N | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4370 | 4370 | Lycoming Engines O-235-C1, -C1B, -C2A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4381 | 4381 | Lycoming Engines O-235-L2C, -F2A, -N2C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4373 | 4373 | Lycoming Engines O-235-C1, -C2A, -E2A | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4347 | 4347 | Lycoming Engines O-235-C1B, O-320-A2C, -B2C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4330 | 4330 | Continental... C-75-8, -8F, -8FH | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4302 | 4302 | Continental... A-65-1, -3, -6 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4342 | 4342 | Lycoming Engines O-320-D1A, -B2C, IO-320-B1C | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4353 | 4353 | Lycoming Engines AEIO-320-D2B, AEIO-360-A1B6, AEIO-390-A1A6 | 2023-12-01 | current |
| Hartzell Engine Technologies LLC | Magneto ES4333 | 4333 | Continental... A-65-1, -3, -6 | 2023-12-01 | current |
| Champion Aerospace LLC | Magneto 4370 | Lycoming Engines 66GP-0SANN | Lycoming Engines IO-360-P1A | 2023-02-27 | current |
| Champion Aerospace LLC | Magneto 4373 | Lycoming Engines 66GC25SFNN | Lycoming Engines IO-360-B1F6, IO-360-P1A | 2023-02-27 | current |
| Champion Aerospace LLC | Magneto 4381 | Lycoming Engines 66GC05SFNN | Lycoming Engines O-235-F2A | 2023-02-27 | current |
| Champion Aerospace LLC | Magneto 4371 | Lycoming Engines66GC20SFNN | Lycoming Engines AEIO-320-H1A, AEIO-320-H1B, IO-360-P1A | 2023-02-27 | current |
| Champion Aerospace LLC | Magneto 4302 | Lycoming Engines66GP-0RANN | Lycoming Engines LIO-360-B1G6 | 2023-02-27 | current |
| Champion Aerospace LLC | Magneto 4330 | Lycoming Engines66GC25RFNN | Lycoming Engines LIO-360-B1G6 | 2023-02-27 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4353 | 4353 | Lycoming Engines O-360-A4M | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4371 | 4371 | Lycoming Engines IO-320-D1A, IO-360-B4A, -C1A | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4370 | 4370 | Lycoming Engines O-320-E1A, AEIO-360-A1A, IO-390-D1A6 | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6340 | 6340 | Lycoming Engines LTIO-540-J2B | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6310 | 6310 | Continental... IO-550-N | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4373 | 4373 | Lycoming Engines O-320-E1A | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6320 | 6320 | Continental... TSIO-520-BE | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4345 | 4345 | Lycoming Engines IO-390-D1A6, -D1B6, -D3A6 | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6350 | 6350 | Lycoming Engines O-540-A1A5 | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4302 | 4302 | Lycoming Engines LIO-360-C1E6, -M1A, LO-360-A1H6 | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4347 | 4347 | Lycoming Engines IO-360-B1B | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6380 | 6380 | Continental... IO-550-N | 2022-06-08 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6314 | 6314 | Continental Motors IO-360-A, -B, -C | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6371 | 6371 | Lycoming Engines O-540-E4C5, IO-540-G1D5, -K1B5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6310 | 6310 | Continental Motors IO-470-A, -C, -D | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6380 | ES6380 | Continental Motors IO-470-A, -C, -D | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6320 | 6320 | Continental Motors LTSIO-360-E, -EB, -KB | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6350 | 6350 | Lycoming Engines HIO-390-A1A, O-540 -A1D5, -A4A5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6379 | 6379 | Continental Motors E-165-2, -3, -4 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6351 | 6351 | Lycoming Engines O-540-A1B5, -A4A5, -A4B5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6394 | 6394 | Lycoming Engines LTIO-540-J2B | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6363 | 6363 | Lycoming Engines IO-540-AG1A5, TIO-540-A2B, -A2C | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6340 | 6340 | Lycoming Engines LTIO-540-AK1A | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6313 | 6313 | Continental Motors IO-470-E, -F, -D | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6324 | 6324 | Continental Motors LTSIO-520-AE, TSIO-360-A, -AB | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6364 | 6364 | Continental Motors C-145-2, -2H, -2HP | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6309 | 6309 | Continental Motors IO-470-D, -E, -F | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6377 | 6377 | Continental Motors E-165-2, -3, -4 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6355 | 6355 | Lycoming Engines O-540-A1A5, -A1B5, -A1C5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6382 | 6382 | Continental Motors IO-470-A, -C, -D | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6390 | 6390 | Lycoming Engines O-540-F1A5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6393 | 6393 | Lycoming Engines O-540-A1D5, -A4D5, -B1A5 | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6360 | 6360 | Lycoming Engines IO-540-AG1A5, -AA1B5, TIO-540-A2B | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6367 | 6367 | Continental Motors GO-300-A, -B, -C | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6362 | 6362 | Continental Motors IO-470-A, -C, -D | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6365 | 6365 | Lycoming Engines TIO-540-U2A | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES6361 | 6361 | Lycoming Engines IO-540-AA1B5, TIO-540-W2A, -AF1A | 2021-05-24 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4330 | 4330 | Continental Motors C-75-8, -8F, -8FH | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4345 | 4345 | Lycoming Engines IO-360-A1A, -A2A, -A2D-C1A | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4371 | 4371 | Lycoming Engines O-235-C2C, -H2C, N2C | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4374 | 4374 | Lycoming Engines LIO-360-C1E6 | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4310 | 4310 | Continental Motors IO-240-B | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4302 | 4302 | Continental Motors A-65-1, -3, -6 | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4347 | 4347 | Lycoming Engines O-235-C1B, O-320-A2C, -B2C | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4301 | 4301 | Continental Motors C-75-12, -12F, -12FH | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4373 | 4373 | Lycoming Engines O-235-C1, -C2A, -E2A | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4354 | 4354 | Lycoming Engines IO-320-C1A | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4342 | 4342 | Lycoming Engines O-320-D1A, -B2C, IO-320-B1C | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4309 | 4309 | Continental Motors IO-240-B | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4333 | 4333 | Continental Motors A-65-1, -3, -6 | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4353 | 4353 | Lycoming Engines AEIO-320-D2B, AEIO-360-A1B6, AEIO-390-A1A6 | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4348 | 4348 | Lycoming Engines LIO-360-M1A | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4381 | 4381 | Lycoming Engines O-235-L2C, -F2A, -N2C | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4372 | 4372 | Lycoming Engines O-235-K2B, -K2C, -L2A | 2021-05-21 | current |
| Kelly Aerospace Energy Systems LLC | Magneto ES4370 | 4370 | Lycoming Engines O-235-C1, -C1B, -C2A | 2021-05-21 | current |
| Champion Aerospace LLC | Magneto 4302 | Lycoming Engines 66GP-0RANN | Lycoming Engines LIO-360-B1G6 | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 4330 | Lycoming Engines 66GC25RFNN | Lycoming Engines LIO-360-B1G6 | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 4371 | Lycoming Engines 66GC20SFNN | Lycoming Engines AEIO-320-H1A AEIO-320-H1B IO-360-P1A | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 4381 | Lycoming Engines 66GC05SFNN | Lycoming Engines O-235-F2A | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 4373 | Lycoming Engines 66GC25SFNN | Lycoming Engines IO-360-B1F6 IO-360-P1A | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 4370 | Lycoming Engines 66GP-0SANN | Lycoming Engines IO-360-P1A | 2020-11-22 | current |
| Champion Aerospace LLC | Magneto 6380 | 6310 | Continental Motors IO-550-A, B, C | 2018-03-25 | current |
| Champion Aerospace LLC | Magneto 4370 | Lycoming Engines 66GP-0SANN | Lycoming Engines IO-360-P1A | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 4381 | Lycoming Engines 66GC05SFNN | Lycoming Engines O-235-F2A | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 4373 | Lycoming Engines 66GC25SFNN | Lycoming Engines IO-360-B1F6, IO-360-P1A | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 4371 | Lycoming Engines 66GC20SFNN | Lycoming Engines AEIO-320-H1A, AEIO-320-H1B, IO-360-P1A | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 4330 | Lycoming Engines 66GC25RFNN | Lycoming Engines LIO-360-B1G6 | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 4302 | Lycoming Engines 66GP-0RANN | Lycoming Engines LIO-360-B1G6 | 2018-02-26 | current |
| Champion Aerospace LLC | Magneto 6361 | Lycoming Engines 66LC35SDNP | Lycoming Engines IO-540-AA1B5, TIO-540-AF1B, TIO-540-AH1A | 2017-11-06 | current |
| Champion Aerospace LLC | Magneto 4342 | Lycoming Engines 66GP-0SAEN | Lycoming Engines O-360-A1F6 | 2017-11-06 | current |
| Champion Aerospace LLC | Magneto 4370 | Lycoming Engines 66GP-0SANN | Lycoming Engines AEIO-360-A1E6, AEIO-360-A2C, AEIO-360-B1F | 2017-11-06 | current |
The first 150 of 400.
Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.
